玻璃天桥和玻璃栈道中钢化玻璃的受力及设计分析  

ANALYSIS OF LOAD-BEARING CAPACITY AND DESIGN OF TEMPERED GLASSES USED IN GLASS OVERBRIDGES AND GLASS SKYWALKS

作　　者：王综轶 王元清[1] 李运生 WANG Zongyi;WANG Yuanqing;LI Yunsheng(Key Laboratory of Civil Engineering Safety and Durability of Education Ministry,Department of Civil Engineering,Tsinghua University,Beijing 100084,China;College of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]清华大学土木工程安全与耐久教育部重点实验室,北京100084 [2]石家庄铁道大学土木工程学院,石家庄050043

出　　处：《工业建筑》2019年第10期110-116,共7页Industrial Construction

基　　金：国家自然科学基金项目(51878586,51878377);中国博士后科学基金项目(2019T120097,2018M630164)

摘　　要：介绍了我国已修建的玻璃桥梁以及受力方式,将有限元计算结果与JGJ 113—2015《建筑玻璃应用技术规程》建议方法计算结果和试验结果进行对比,验证有限元计算的准确性,对钢化夹层玻璃板的承载性能进行参数分析。研究结果表明:随着玻璃板短边长度的增加,有限元所得的最大应力和挠度线性增加,JGJ 113—2015建议方法计算得到的应力线性增长而挠度非线性变化。玻璃层数对玻璃板的承载能力影响较大。增加单片玻璃厚度,玻璃板的最大应力和挠度均会降低。设计中,玻璃板的动力放大系数可取2.0。The overbridges built in China and the types of loads were introduced in the paper.The finite element(FE)results were compared with the calculated results following Technical Specification for Application of Architecture Glass(JGJ 113—2015)and test data.The accuracy of the FE results was verified.A parametric study on tempered laminated glass was conducted.The research results showed that the maximum stress and deflection obtained from FE study linearly increased with the increase of the length of short edge of glass plate.The calculated stress following code suggestions linearly increased,while the calculated deflection nonlinearly increased.The number of glass layers had a significant effect on the bearing capacity of glass plate.While the thickness of the single glass ply increased,the maximum stress and deflection would decrease accordingly.A dynamic amplification factor of 2.0 could be adopted in the design.

关 键 词：钢化夹层玻璃 天桥 栈道 有限元 参数分析 

分 类 号：TU3[建筑科学—结构工程]